Electrically-controlled lock.



L. CADENEL.

ELECTRICALLY CONTROLLED LOCK.

APPLICATION FILED MAR. 12, 1914.

1, 165,943. Patented Dec. 28,1915.

2 SHEETS-SHEET I.

COLUMBM PLANOGRAPH co., WASHINGTON, D. t.

L. CADENEL.

ELECTRICALLY CONTROLLED LOCK.

APPLICATION FILED MAR-12,1914.

1,165,943; Patented De0.28,1915.

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LOUIS CADENEL, F PARIS, FRANCE.

ELECTRICALLY-CONTROLLED LOCK.

intents.

Specification of Letters Patent.

Patented Dec. 28, 1915.

Application fil ed amt-12, 1914. Serial no. 824,314.

and useful Improvements in Electrically.

Controlled Locks, of which the following is a specification.

The present invention relates to an electrically controlled keyless lock and partloularly one of the type which can be operated by a. switch provided with secret combinations and arranged to operate an alarm for all erroneous combinations; as an example of this type, I will refer to Leducs French Patent No. 433598, dated 25th August 1911. The lock has no opening, cannot be picked, and its mechanism is such that it is: imposs ble to operate the bolt without the electric current.

The annexed drawing illustrates the invention. I

Figure 1 is a plan of the inside, the parts being in the position allowing movement of the bolt. Fig. 2 is a partial view showing the position of the parts when the door, on which the lock is secured, is closed and the bolt locked. Fig 3 is a similar view to Fig. 1, showing the bolt free. F igs. 4: and 5 are 7 elevations on a larger scale respectively showing the position of the locking plate for the bolt when the latter is locked and when it is free. Fig. 6 is a plan of Fig. 4. Fig. 7 is a section on line AA of Fig. 6.

As shown in Fig. 1, the lock comprises a rectangular casing inclosing the various parts of the device. The face 00 of this casing has three openings, one 5 for the passage of the electric wires, another 'o for the passage of a rod A provided with a spring d and a third 6 for the passage of aro'd B governed by a spring I On the inner face of wall 9 is fixed a square support 71. for guiding the rod A while giving it sufiicient play to be displaced laterally (that is, down from the positions shown in Figs. 1, 2, and 3).

. The wall 2' of the casing has anopening for the bolt P and serving as a guidefor the same. .To set the lock and allow the bolt P to lodge in the staple when the door is shut it is sufficient to push the button 6? of the rod A from left to right (from the position shown in Fig. 3 to that of Fig. 1) whereby a tooth 7c of this rod engages a tooth Z of an eccentric or cam member Z mounted on a lever m and oscillatable around a pin a, said member being under the action of the spring 8. As the rod A moves toward the right, the spring D allows it to yield downwardly to a sufficient extent to clear the tooth Z, but immediately after the tooth 7c has passed to the right of the tooth Z, the spring D pushes the rod A up again. The spring (Z being tensioned the two teeth remain in engagement under the action of the plate spring D acting on the rod A and which holds the tooth is firmly engaged with tooth Z and in this position preventing any release of the bolt by the action of blows or jars. The lever m being influenced by the action of spring (Z can abut against the eX- tremity of a lever 0 oscillating around the point 70, this lever tends to move away from the wall a of the lock by the action of a spring g, but this movement is limited by an abutment r. It can be seen that with the parts in this position the bolt P is movable and when shutting the door, it moves into the lock and out again to engage in the staple directly the door is closed. By switching on the electric current, the electromagnets E E attract their respective armatures S S (the former rigid with the lever m) and the lever m is thus liberated. The tooth is under the action of the spring d draws the lever m which turns around the pin n and the abutment t of the rod A draws the abutment u of the rod B, and the bolt P is drawn into the interior of the lock. As soon as the tooth Z is free the spring 8 draws the lever m downward, that is to say, toward the wall 9 of the look. In this position (Fig. 8) the bolt P remains always maintained in the interior of the look by the distended spring (Z. To set the look again it is suflicient to push the button F from left to right and proceed as previously described.

The armature S of the electromagnet E turning around the point e is provided with acopper spring w which tends to push it toward the left directly the action of the current ceases. Further this armature has a shoulder as on which the armature S en gages. This device is for the purpose of preventing the armature S toward the electromagnetE and of releasing the lever m which would free the spring (Z and open the lock without the current traversing the electromagnets. In effect if means were not provided for locking the from moving armature S a violent blow on the door or any other analogous cause might ei'lect the opening of the lock. By the combination of these two inter-engaging armatures fraudulent opening is impossible.

In order to prevent any fraudulent at tempt to open the look by pressure on the beveled face of the bolt P, the extremity of the rod A is provided with a steel plate or dog 1 having the particular shape shown in Figs. 4: and 5; this dog is housed in a slot suitably formed in the end of the rod A, is mounted toturn on a pin 2 and reduced at its extremity 8 by which extremity it rests on a small coil spring i conveniently guided and housed in a recess 5. The extremity G of the dog 1, forms a pawl arranged to abut against the shoulder 7 of a tappetS fixed to the bar B of the bolt P.

A block 9 can slide onthe end of the rod A and is automatically brought into suitable position to maintain the dog 1 lowered or raised according as the bolt P is locked or unlocked. The block 9 is arrested at the extremity of the rod A by the nose 11 of the dog 1, which serves as an abutment for the bolt and prevents the block 9 from sliding oil? the end of the rod at the time of electrical release of the belt which pushes the member 9 to its initial position.

In Figs. 1 and 5 the block 9 is at the free end of the rod A and maintains the dog 1 raised, which allows of setting the lock without the said block 9 moving relatively to the rod A. At this moment by closing the door, the bolt P by means of the tappet 8 on the bar B pushes back the block 9, it being understood that the bolt is forced inward owing to its beveled end engaging the keeper or the like; the block 9 is thus brought back to the position shown in Figs. 2 and i, releasing the dog 1 so that its end (3 can move downward under the influence of the spring 4'.- Since however, at the beginning of this movement toward the left, the tappet 8 is to the left of the nose 11 (Fig. 5) the tappet and dog do'not come into cooperation during such movement to ward the left. As soon as the door reaches the fully-closed position, the spring 7 projects the bolt P into the opening of the keeper (this being the position shown in Fig. 2), causing the inclined surface of the tappet 8 to engage the nose 11 and partially lift the dog 1 so that said surface will pass from a position at the left of the nose 11, to a position at the right of said nose, and the dog 1 falling into the position shown in Fig. 4 engages the shoulder 7 of the tappet 8 and locks the bolt. In this position the block 9 further contributes to maintain the dog 1 in its inclined or locking position, that is to say, it strengthens the action of said plate and renders it absolutely efficacious and reliable.

What I claim as my invention and desire to secure by Letters Patent of the United States is 1. In an electrically controlled lock, the combination of acasing, a belt, a rod integral with said bolt, a setting member projecting to the outside of said casing, a tooth thereon, a pivoted member, a tooth thereon with which the tooth of said setting member is adapted to engage, means for holding said teeth. in engagement or releasingthem to lock or release the boltand electrically operated means for controlling said means.

2. In an electrically controlled lock, the combination of a casing, a bolt, a rod integral with said bolt, a setting member projecting to the outside of said casing, a tooth thereon, a pivoted member, a tooth thereon with which the tooth of said setting member is adapted to engage, means for holding said teeth in engagement or releasing them to lock or release the bolt, electrically operated means for controlling said means, and additional means for locking said bolt. 7

3. In an electrically controlled lock, the combination of a casing, a bolt, a rod integral with said bolt, a setting member projecting to the outside of said casing, a tooth thereon, a pivoted member, a tooth thereon with which the tooth of said setting member is adapted to engage, a lever coaxial with said pivoted member, a spring governing said pivoted member, a pivoted angle member, one arm of which is adapted to coact with said lever, and electrically operated means acting on the other arm of said angle member.

4. In an electrically controlled lock, the combination of a casing, a bolt, a rod integral with said bolt, a setting member, a tooth thereon, a pivoted member, a tooth thereon with which the tooth "of said setting member is adaptedto engage, a leverrcoaxial with said pivoted member, a spring governing said pivoted member, a pivoted angle member, one arm of which is adapted to coact with said lever, an electromagnet acting on the other arm of said angle member, a' second lever adapted to control the movement of said last mentioned arm and a second electromagnet controlling said s cond lever. I

5. In an electrically controlled lock, the combination of a casing, a bolt adapted to slide therein, a spring governed rod integral with said bolt, a spring governed setting bar, one end of which projects through said casing, means for guiding said rod and said bar, means for operating saidrod by the movement of said bar, a spindle, a cam member mounted to turn thereon, a tooth on said cam member, a tooth on said bar adapted to be engaged with said cam tooth, a rocking lever mounted on said spindle and fixed to lit said cam member, means for locking said teeth in engagement to lock or releasing them to free the bolt, electrically operated means for controlling said means and additional means for locking said bolt.

6. In an electrically controlled lock, the combination of a casing, a bolt adapted to slide therein, a spring governed rod integral with said bolt, a spring governed setting bar, one end of which projects through said casing, means for guiding said rod and said bar, means for operating said rod by the movement of said bar, a spindle, a cam member mounted to turn thereon, a tooth on said cam member, a tooth on said bar adapted to be engaged with said cam tooth, a rocking lever mounted on said spindle and fixed to said cam member, means for holding said teeth in engagement to lock the bolt or releasing them to free the bolt, a dog pivoted in a slot in the end of said bar, a spring, a tappet on said rod with which said dog is adapted to engage by the action of said spring and an automatically sliding block mounted on said bar adapted to release said dog from engagement with said tappet.

7 In a look, a casing, a bolt, a spring for projecting it into the operative position, a dog adapted to lock said bolt in its operative position, means, operated by the retractive movement of the bolt which occurs as said bolt approaches the closing position, for setting said dog to a position in which it may look the bolt upon its springing home to the looking or operative position, and means for releasing the bolt.

8. In a look, a casing, a bolt, a spring for projecting said bolt into the operative position, a dog movable into and out of the path of said bolt, a slide arranged to be engaged by said bolt and to be moved thereby inward when the bolt is retracted as it approaches its operative position, to bring said slide from a position in which it keeps the dog in its inactive position to one in which the dog is caused to project into the path of the bolt to hold it positively in the locked position when it snaps home, and means for releasing the bolt.

9. In a lock, a casing, a bolt, a spring for projecting the bolt into the operative position, a setting member movable in a direction parallel with the bolt, elastic means for normally causing the bolt and setting member to move in unison, yet allowing an independent movement of the bolt, locking means cooperating with said setting member, a dog carried by said setting member and movable into and out of the path of said bolt, a slide movable along said setting member and controlling said dog, said slide be ing in the path of the bolt so that when the bolt moves independently of the setting member as the bolt approaches its operative position, the slide will be brought from a position in which it holds the dog out of the path of the bolt, to one in which the dog is caused to project into the path of the bolt to hold it positively in the locked position when it snaps home, and means, cooperating with the locking means of the setting member, for releasing said setting member and the bolt.

10. In a look, a casing, a bolt, a spring for projecting the bolt into the operative position, a setting member movable in a direc tion parallel to the path of the bolt, elastic means for normally causing the bolt and setting member to move in unison, yet allowing an independent retractive movement of the bolt, locking means cooperating with said setting member, and means, cooperating with said locking means, for releasmg said setting member and the bolt.

In witness whereof I have signed this specification in the presence of two witnesses.

LOUIS CADENEL. Witnesses:

PAUL Loreer, ALFRED MOULIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

